Internal-combustion engine.



L. H. L. BELLEM & e. J'.-B-. BRE'GRAS. INTERNAL COMBUSTION ENGINE. I

A PPLICATI'O N FILED MAR-'2. 1912.

Patented 0015.19, 1915.

1,1111 1 1 I I b/ UNITED STATES PATENT oFErcE.

LOUIS HENRI LIBERT BELLEM. AND GASTON Jnnn-narrxs'rn nnzscnnas, or NEUILLY- SUR-SEINE, FRANCE.

INTERNAL-COMBUSTION ENGINE.-

To all u'homit may concern:

Be it known that we, LOUIS HENnI LI- Neuilly-sur-Seine, Seine, in the. said Repubhe. have invented a new and useful Improvement in Internal-Combustion Engines, of

' which the following is a specification.

This invention relates to improvements in internal combustion engines in which oils of low volatility are'used, especially heavy petroleums, and more particularly in such internal combustion engines as described in our prior United States Patent No. 513261, of August 17th 19(19, in which, the atomization of liquid petroleum is obtained by pulverization of said combustible by the action of the vacuum produced in the. cylinder.- For this'purpose in the engine described in our said patent, the liquid combustible suitably pulverized .was admitted into the cylinder at the beginning of the suction stroke, while the air for the combustion was only supplied at the end of said suction stroke.

The present improvements consist in modifying the mode of admission of the air forv the combustion in the engine at the end of the suction stroke, using for the purpose an operated valve opening in the top of the cylinder, and on the other part in placing the atomizer in front of this valve in order to increase the action of the vacuum in the cylinder and to introduce at the same time in this cylinder the pulverized petroleum and the air of combustion-at the end only of the suction stroke. v

In the accompanyingdrawings, Figure 1 is a vertical section of the top part of our improved engine. Fig. 2 is a similar view partly in section showing a modification which may be employed in certain cases where the atomizer'consists' of a spraying nozzle of a well known type.-

As will be seen-in Fig. 1,-in the head of the cylinder a a pipeb opens, the interior opening-of which'is controlled by-the admissionvalvec placed in a' known manner opposite' the discharge valved. an; valves is operated :by'la'two-armed lever eacting on it'sfistem 'fand suitably'opei-ated by the: shaft of the engine inorder to open at the .end'of thesuction stroke'; a-spring tends to fdrawigconstantly this, valve into its closed rhmtten nc of .the-pipe-"b open- Specification of Letters Patent.

P tented Oct. 19, 1915.

Application filed March 2, 1912. Serial No. 681,115.

ing in the atmosphere is controlled by, a throttle valve 72. which may be operated from outside and allows of opening or closing this pipe more or less. In the pipe I) in front of the admission valve 0; is mounted the peo troleum atomizer,whichfconsists in this case in apulverizing valve'i of the kind described in our said prior paten'tl It will be seen that owing to this arrangement by the downward stroke of the piston 3" during the suction stroke, a vacuum will be produced in the cylinder the more considerable as the valve 0 -remains closed. At the end of the suction" stroke this valve opens suddenly'under theaction of its controlling means and the wow um can thus, act energetically in the passages of the pulverizing valve 6 in order to secure a perfectatomization of thepetroleum in the manner described in our said patent. In

starting the engine care should be taken that the throttle valve be shut in order to increase the action of the vacuum; after starting, the throttle valve must be opened to the proper extent inorder that together with the atomized petroleum admitted through the pulver- 3o izing valve 6 the quantity of air necessary for its combustion may-be admitted in the cylinder.

In the case where it would not be necessary to produce the direct starting of the 35 engine by means of the heavy petroleum and where'there'would be no drawback in the use of gasolene, benzin or other combustis ble to start the engine, a pulverizing nozzle k of a well known type, such as the spray- 9o i'ng' nozzle of 'a carbureter supplied. by a float chamber-Z, could be substituted for the atomizing valve, as shown in Fig. 2. It may be desirable inthat case to provide the pipe I) with acock m'for the admission of gasolene 01' other volatile combustible in order to allow the quantity of gasolene or other volatile combustible necessary for starting the engine to enter.. After the starting has been effected, the action of'the great vacuum cylinder,- a piston therein, an intake passage combustible, to wit: m5

opening into the top of the cylinder, an inlet valve at the mouth of the said passage. and an atomizer located in the said passage ahead of the valveand adapted to operateunder the influence of a vacuum. the said valve being arranged to open only when the piston is at the. end of its intake stroke in" order to create a vacuum in the c vlinder.u

2. In an internal combustion motor using fuel of low volatility. the combination of a cylinder, a piston therein, an intake passage opening. into the top of the cylinder, a throttle valve in said passage, an inlet valve at the mouth of said passage communicating with the cylinder, an atomizing valve located in said passage intermediate the throttle valve and inlet valve and adapted to operate under the influence of a vacuum, the sald inlet valve being arranged toopen only when the piston is at the end of its intake stroke in order to create a vacuum in the 

